Cleaning clearer roller cleaning device and working method thereof
By combining a lifting and swinging mechanism with a rotary inserting axially reciprocating arc-shaped scraper and negative pressure suction, the problems of incomplete cleaning and secondary contamination of the wool roller are solved, realizing online deep cleaning of the wool roller and improving cleaning efficiency and equipment utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG QING FANG LIAN TEXTILE CO LTD
- Filing Date
- 2026-04-08
- Publication Date
- 2026-05-19
AI Technical Summary
Existing technologies have low and incomplete cleaning efficiency for the wool rollers, which can easily cause secondary pollution and cause severe wear on the wool rollers, affecting production continuity and equipment utilization.
A cleaning device for a lint roller was designed. It uses a lifting and swinging mechanism to achieve precise contact with the lint roller surface. Combined with a rotating insertion and axial reciprocating arc-shaped scraper, and negative pressure suction, it achieves deep cleaning. The sealed negative pressure chamber and inclined surface design prevent impurities from flying away.
It achieves online, deep, non-destructive, and efficient cleaning of the rollers, significantly improving cleaning thoroughness and equipment utilization, reducing maintenance frequency, and ensuring the quality of the workshop environment.
Smart Images
Figure CN122057724A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of textile production technology, and in particular to a cleaning roller cleaning device and its working method. Background Technology
[0002] In the textile production field, pile rollers are a widely used surface treatment or cleaning component. The dense pile covering their surface inevitably accumulates a large amount of fiber debris and dust particles during operation. These impurities not only seriously affect the performance of the pile roller itself, leading to a decrease in its cleaning or coating effect, but may also fall off and contaminate the product, resulting in an increased defect rate.
[0003] Currently, the cleaning and maintenance of pile rollers mainly relies on the following methods: First, manual cleaning using brushes, vacuum cleaners, or compressed air. This method is inefficient, does not clean thoroughly, and cannot reach the root of the pile, easily generating dust and causing secondary pollution, while also wasting valuable production time. Second, using simple fixed dust suction ports in conjunction with external brushing mechanisms. Such equipment usually has problems such as poor adhesion to the pile roller surface, insufficient negative pressure suction, and significant damage to the pile. In addition, the cleaning range is limited and it is difficult to adapt to pile rollers of different diameters and lengths. Third, offline cleaning after disassembly. Although this method can achieve relatively thorough cleaning, the process is cumbersome, the downtime is long, and the labor intensity is high, which seriously affects the continuity of production and equipment utilization. Summary of the Invention
[0004] The problem solved by this invention is to provide a cleaning roller cleaning device and its working method, which is integrated online with the production line, has a high degree of automation, can achieve deep and thorough cleaning, synchronously and efficiently collect impurities, and has self-cleaning ability.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cleaning roller cleaning device and its working method include a support frame installed in a machine frame, a first pneumatic cylinder installed on the support frame, a lifting frame installed at the bottom telescopic end of the first pneumatic cylinder, a cleaning chamber rotatably installed inside the lifting frame, a negative pressure chamber opened in the cleaning chamber, a cleaning port opened on the side wall of the cleaning chamber, and a negative pressure port opened at the bottom of the cleaning chamber, a top groove opened on the top side of the cleaning chamber, a guide rod horizontally installed in the top groove, and a sliding plate slidably installed on the guide rod, a plurality of arc-shaped scrapers are equally spaced and installed through the sliding plate, an annular scraper seat is provided on the bottom side of the sliding plate and outside the arc-shaped scrapers, and the top ends of the plurality of arc-shaped scrapers are connected to a movable cover plate.
[0006] Preferably, both the lifting frame and the cleaning chamber are equipped with ear seats, and the ear seats are rotatably connected to both ends of the second pneumatic cylinder via insert shafts.
[0007] Preferably, the outer side of the cleaning port is set with an arc that matches the surface of the cleaning roller, the negative pressure port is connected to the negative pressure device through a pipe, and the bottom side of the interior of the cleaning chamber is provided with a downward inclined surface.
[0008] Preferably, each end of the cleaning chamber is provided with a mounting base, a polygonal rotating shaft is rotatably mounted in the mounting base, a first rotating arm is mounted at each end of the polygonal rotating shaft, and a fixed base is installed between the two first rotating arms.
[0009] Preferably, a sleeve shaft is fitted on the outside of the polygonal rotating shaft, and a second rotating arm is installed at both ends of the sleeve shaft. The two second rotating arms are respectively connected to the ends of the movable cover plate. The curvature of the arc-shaped scraper is matched with the curvature of the circular trajectory formed by the axis of the sleeve shaft when it rotates. When the movable cover is closed, its periphery extends beyond the entire periphery of the top groove to form a sealed engagement with the top side of the cleaning chamber.
[0010] Preferably, a first motor is mounted on the mounting base, and the output end of the first motor is connected to a polygonal rotating shaft.
[0011] Preferably, a second motor is installed on the fixed base, a turntable is installed at the output end of the second motor, and a plurality of transmission protrusions are equidistantly arranged along the bottom side of the turntable in the circumferential direction.
[0012] Preferably, two parallel first racks and second racks with opposing tooth surfaces are installed on the top side of the movable cover plate, and the first rack and second rack respectively mesh with the transmission protrusion of the turntable for transmission.
[0013] Preferably, the transmission protrusion is configured to periodically and alternately mesh with the first rack and the second rack during the continuous rotation of the turntable, thereby driving the movable cover plate to perform reciprocating linear motion.
[0014] A method for operating a cleaning roller cleaning device, the specific operating steps of which are as follows: Step 1: The first pneumatic cylinder drives the lifting frame to descend, bringing the entire cleaning module carrying the cleaning chamber closer to the lint roller. The second pneumatic cylinder then starts working, pushing the cleaning chamber to pitch and swing around its rotation connection point with the lifting frame, so that the cleaning port on the side wall of the cleaning chamber precisely fits and wraps around the lower outer surface of the lint roller. Step 2: Once the cleaning chamber is in place, the movable cover begins to move. The second motor drives the turntable to rotate, and the transmission protrusion on the bottom side of the turntable rotates accordingly. Since the first and second racks are parallel and their tooth surfaces are fixed to the top of the movable cover, the transmission protrusion periodically and alternately meshes with the two racks during continuous rotation. When the transmission protrusion meshes with the first rack, it pushes the movable cover to one side. When the transmission protrusion rotates to the point of separating from the first rack and then meshing with the second rack, it pushes the movable cover to the other side. Under the constraint of the guide rod, the movable cover achieves reciprocating linear motion. The movable cover is connected to the polygonal rotating shaft through the second rotating arm and the sleeve shaft. Its reciprocating motion is synchronously converted into the reciprocating movement of the sleeve shaft on the polygonal rotating shaft. At the same time, the arc-shaped scraper connected to the movable cover drives the slide plate to move on the guide rod. Step 3: The first motor drives the polygonal shaft to rotate, which in turn drives the arc-shaped scraper to rotate through the sleeve shaft. The end of the arc-shaped scraper is inserted into the cleaning roller, and the arc-shaped scraper moves back and forth with the movable cover plate. The arc-shaped scraper peels off the dust and lint impurities attached deep to the fibers of the cleaning roller. The negative pressure device is connected to the negative pressure port through the pipe, which generates a strong suction in the negative pressure chamber of the cleaning chamber. Under the action of negative pressure, the peeled impurities are instantly sucked into the cleaning chamber from the cleaning port, and collect along the downward slope at the bottom. Finally, they are drawn into the dust collection system through the negative pressure port. Step 4: After cleaning is completed, the first motor drives the polygonal shaft to rotate again. At this time, the arc-shaped scraper rotates to the end and passes through the annular scraper seat. The annular scraper seat scrapes off the impurities wrapped around and attached to the arc-shaped scraper and they fall into the bottom of the cleaning chamber. Then the arc-shaped scraper rotates back to its original position, and the second pneumatic cylinder retracts, causing the cleaning chamber to swing away from the surface of the cleaning roller. Subsequently, the first pneumatic cylinder raises the lifting frame, so that the cleaning chamber is completely away from the cleaning roller.
[0015] The beneficial effects of this invention are: This system achieves efficient, deep, and non-destructive online cleaning of the pile rollers. The device can be directly integrated into the production line frame. Through a precise lifting and swing positioning mechanism, the cleaning module quickly and accurately adheres to the surface of the running or paused pile rollers, enabling continuous online cleaning without stopping the machine. This significantly reduces production downtime and improves overall equipment utilization. A unique rotary insertion and axial reciprocating composite motion mechanism drives multiple arc-shaped scrapers to simulate hand-brushing. The arc-shaped scrapers first rotate and cut deep into the pile of the roller, then, in conjunction with axial reciprocating motion, thoroughly remove stubborn impurities rooted within the fibers, rather than simply sweeping them away. The cleaning thoroughness is improved by more than 50% compared to traditional methods. Pneumatic drive is used for positioning and pressure application, providing excellent buffering characteristics. This ensures that the cleaning port and scrapers maintain flexible contact with the pile roller surface while effectively cleaning, avoiding scratches, pulls, or excessive wear on the delicate pile and significantly extending the service life of expensive pile rollers. A closed-loop cleaning environment with simultaneous scraping and suction is constructed to prevent secondary pollution: The cleaning chamber is designed as a sealed negative pressure cavity. The moment the scraper removes impurities, the powerful negative pressure suction draws the impurities into the chamber through the matching cleaning port, fundamentally solving the industry problem of impurities flying and spreading during the cleaning process, and ensuring the quality of the workshop environment; The bottom surface of the cleaning chamber adopts an optimized inclined slope. The sucked-in impurities automatically slide towards the negative pressure port under the combined action of gravity and airflow, and are quickly discharged into the central dust collector by the pipeline system, realizing the continuous and smooth transfer of impurities and avoiding blockage and accumulation inside the device; It possesses a high degree of self-maintenance and self-adaptation capabilities, ensuring reliable operation and low maintenance costs: An annular scraper seat is installed, and at the end of each cleaning cycle, the arc-shaped scraper passes through the annular scraper seat during its reset rotation, automatically scraping away the fibers and residues entangled on its surface. This ensures the scraper always maintains optimal working condition, resulting in consistently stable cleaning performance and significantly reducing the frequency of manual cleaning and maintenance. Through lifting and swinging, the device can quickly adapt to various types of felt rollers with different diameters and installation positions, offering strong versatility and reducing equipment modification costs for different production lines. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall first structure of the present invention; Figure 2 This is a schematic diagram of the overall second structure of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is a cross-sectional view of the present invention; Figure 5 This is a schematic diagram of the mounting structure of the turntable, transmission protrusion, first rack, and second rack of the present invention.
[0017] Legend: 1. Support frame; 2. First pneumatic cylinder; 3. Lifting frame; 4. Cleaning chamber; 5. Second pneumatic cylinder; 6. Cleaning port; 7. Negative pressure port; 8. Top groove; 9. Guide rod; 10. Slide plate; 11. Arc-shaped scraper; 12. Movable cover plate; 13. Annular scraper seat; 14. Mounting seat; 15. Polygonal rotating shaft; 16. First rotating arm; 17. Fixed seat; 18. Sleeve shaft; 19. Second rotating arm; 20. First motor; 21. Second motor; 22. Turntable; 23. Transmission protrusion; 24. First rack; 25. Second rack. Detailed Implementation
[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Specific implementation examples are given below.
[0020] See Figures 1-5 A cleaning roller cleaning device and its working method include a support frame 1 installed in a machine frame, a first pneumatic cylinder 2 installed on the support frame 1, a lifting frame 3 installed at the bottom telescopic end of the first pneumatic cylinder 2, a cleaning chamber 4 rotatably installed on the inner side of the lifting frame 3, and ear seats installed on both the lifting frame 3 and the cleaning chamber 4. The ear seats are rotatably connected to the two ends of a second pneumatic cylinder 5 through insert shafts. The first pneumatic cylinder 2 drives the lifting frame 3 to rise and fall. The lifting frame 3 and the cleaning chamber 4 are oscillatingly connected through the second pneumatic cylinder 5. The combined motion of rising and falling and oscillating allows the cleaning chamber 4 to accurately fit the cleaning rollers at different heights and positions. The cleaning chamber 4 has a negative pressure chamber, a cleaning port 6 on the side wall, and a negative pressure port 7 at the bottom. The outer side of the cleaning port 6 is set with an arc that matches the surface of the cleaning roller. The negative pressure port 7 is connected to the negative pressure device through a pipe. The bottom inside the cleaning chamber 4 has a downward sloping surface. The arc-shaped cleaning port 6 ensures a tight fit with the surface of the cleaning roller to prevent air leakage. The negative pressure system immediately sucks away impurities while cleaning to avoid secondary pollution. The sloping surface facilitates the collection of impurities towards the negative pressure port 7 to prevent accumulation. The cleaning chamber 4 has a top groove 8 on its top side. A guide rod 9 is horizontally installed in the top groove 8, and a sliding plate 10 is slidably installed on the guide rod 9. Several arc-shaped scrapers 11 are evenly spaced and installed through the sliding plate 10. The guide rod 9 ensures that the scrapers 11 reciprocate smoothly without deviation. An annular scraper seat 13 is provided on the bottom side of the sliding plate 10 and outside the arc-shaped scrapers 11. The annular scraper seat 13 can scrape off the impurities attached to the surface of the scrapers 11 when they return to their original position. The tops of the arc-shaped scrapers 11 are connected to the movable cover plate 12. Both ends of the cleaning chamber 4 are provided with mounting seats 14. A polygonal rotating shaft 15 is rotatably installed in the mounting seat 14. First rotating arms 16 are installed at both ends of the polygonal rotating shaft 15, and a fixed seat 17 is installed between the two first rotating arms 16. A sleeve shaft is fitted on the outside of the polygonal rotating shaft 15. 18. Both ends of the sleeve shaft 18 are equipped with second rotating arms 19. The two second rotating arms 19 are respectively connected to the ends of the movable cover plate 12. The curvature of the arc-shaped scraper 11 matches the curvature of the circular trajectory formed by the axis of the sleeve shaft 18 when it rotates. When the movable cover plate 12 is closed, its periphery extends beyond the entire periphery of the top groove 8 to form a sealed joint with the top side of the cleaning chamber 4. The movable cover plate 12 and the top of the cleaning chamber 4 are sealed to maintain a negative pressure environment and improve the dust collection efficiency. A first motor 20 is installed on the mounting base 14. The output end of the first motor 20 is connected to the polygonal rotating shaft 15. The polygonal rotating shaft 15 cooperates with the sleeve shaft 18 to ensure that the arc-shaped scraper 11 moves according to the preset arc trajectory. The first motor 20 drives the scraper 11 to rotate and insert into the fibers of the fluff roller to achieve deep cleaning.
[0021] A second motor 21 is mounted on the fixed base 17. A turntable 22 is mounted on the output end of the second motor 21. Several transmission protrusions 23 are equidistantly arranged along the bottom side of the turntable 22. Two parallel first racks 24 and second racks 25 with opposing tooth surfaces are mounted on the top side of the movable cover plate 12. The first racks 24 and second racks 25 respectively mesh with the transmission protrusions 23 of the turntable 22. The transmission protrusions 23 are configured to periodically and alternately mesh with the first racks 24 and second racks 25 during the continuous rotation of the turntable 22, thereby driving the movable cover plate 12 to perform reciprocating linear motion. The protrusion rack mechanism converts the rotational motion into smooth reciprocating linear motion. The transmission protrusions 23 alternately mesh with the two racks to achieve seamless reciprocating motion.
[0022] Working principle: The first pneumatic cylinder 2 drives the lifting frame 3 to descend, bringing the entire cleaning module carrying the cleaning chamber 4 closer to the wool roller. The second pneumatic cylinder 5 then starts working, pushing the cleaning chamber 4 to pitch and swing around its rotational connection point with the lifting frame 3, so that the cleaning opening 6 on the side wall of the cleaning chamber 4 precisely fits and wraps around the lower outer surface of the wool roller. After the cleaning chamber 4 is in place, the movable cover plate 12 starts to move, and the second motor 21 drives the turntable 22 to rotate. The transmission protrusion 23 on the bottom side of the turntable 22 rotates accordingly. Since the first rack 24 and the second rack 25 are parallel and their tooth surfaces are fixed to the movable cover plate 1, At the top, the transmission protrusion 23 periodically and alternately meshes with the two racks during continuous rotation. When the transmission protrusion 23 meshes with the first rack 24, it pushes the movable cover plate 12 to one side. When the transmission protrusion 23 rotates to disengage from the first rack 24 and then meshes with the second rack 25, it pushes the movable cover plate 12 to the other side. Under the constraint of the guide rod 9, the movable cover plate 12 achieves reciprocating linear motion. The movable cover plate 12 is connected to the polygonal rotating shaft 15 through the second rotating arm 19 and the sleeve shaft 18. Its reciprocating motion is synchronously converted into the movement of the sleeve shaft 18 on the polygonal rotating shaft 15. The movable cover 12 moves back and forth, and the arc-shaped scraper 11 connected to it drives the slide plate 10 to move on the guide rod 9. The first motor 20 drives the polygonal rotating shaft 15 to rotate, which in turn drives the arc-shaped scraper 11 to rotate through the sleeve shaft 18. The end of the arc-shaped scraper 11 is inserted into the cleaning roller, and the arc-shaped scraper 11 moves back and forth with the movable cover 12. The arc-shaped scraper 11 removes dust and lint impurities attached deep to the fibers of the cleaning roller. The negative pressure device is connected to the negative pressure port 7 through a pipe, which generates a strong suction in the negative pressure chamber of the cleaning chamber 4. The removed impurities are instantly removed from the negative pressure. The cleaning fluid is drawn into the cleaning chamber 4 through the cleaning port 6, and then collected along the downward slope at the bottom of the chamber. Finally, it is drawn into the dust collection system through the negative pressure port 7. After cleaning is completed, the first motor 20 drives the polygonal rotating shaft 15 to rotate again. At this time, the arc-shaped scraper 11 rotates to the end and passes through the annular scraper seat 13. The annular scraper seat 13 scrapes off the impurities wrapped around and attached to the arc-shaped scraper 11 and they fall into the bottom of the cleaning chamber 4. Then the arc-shaped scraper 11 rotates back to its original position, and the second pneumatic cylinder 5 retracts, causing the cleaning chamber 4 to swing away from the surface of the cleaning roller. Subsequently, the first pneumatic cylinder 2 raises the lifting frame 3, so that the cleaning chamber 4 is completely away from the cleaning roller.
[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.
Claims
1. A cleaning roller cleaning device and its working method, characterized in that, The system includes a support frame (1) installed inside the frame, a first pneumatic cylinder (2) installed on the support frame (1), a lifting frame (3) installed at the bottom telescopic end of the first pneumatic cylinder (2), a cleaning chamber (4) rotatably installed inside the lifting frame (3), a negative pressure chamber is opened inside the cleaning chamber (4), a cleaning port (6) is opened on the side wall of the cleaning chamber (4), and a negative pressure port (7) is opened at the bottom of the cleaning chamber (4), a top groove (8) is opened on the top side of the cleaning chamber (4), a guide rod (9) is horizontally installed in the top groove (8), and a sliding plate (10) is slidably installed on the guide rod (9), a number of arc-shaped scrapers (11) are installed through the sliding plate (10) at equal intervals, an annular scraper seat (13) is provided on the bottom side of the sliding plate (10) and outside the arc-shaped scrapers (11), and the tops of the number of arc-shaped scrapers (11) are connected to the movable cover plate (12).
2. The cleaning roller cleaning device and its working method according to claim 1, characterized in that, Both the lifting frame (3) and the cleaning chamber (4) are equipped with ear seats, and the ear seats are rotatably connected to both ends of the second pneumatic cylinder (5) via insert shafts.
3. The cleaning roller cleaning device and its working method according to claim 2, characterized in that, The outer side of the cleaning port (6) is set with an arc that matches the surface of the cleaning roller. The negative pressure port (7) is connected to the negative pressure device through a pipe. The bottom side of the cleaning chamber (4) is provided with a downward inclined surface.
4. The cleaning roller cleaning device and its working method according to claim 3, characterized in that, The cleaning chamber (4) is provided with mounting bases (14) at both ends. A polygonal rotating shaft (15) is rotatably installed in the mounting base (14). A first rotating arm (16) is installed at both ends of the polygonal rotating shaft (15), and a fixed base (17) is installed between the two first rotating arms (16).
5. The cleaning roller cleaning device and its working method according to claim 4, characterized in that, The polygonal rotating shaft (15) is fitted with a sleeve shaft (18) on the outside. The sleeve shaft (18) is equipped with a second rotating arm (19) at both ends. The two second rotating arms (19) are respectively connected to the ends of the movable cover plate (12). The curvature of the arc-shaped scraper (11) matches the curvature of the circular trajectory formed by the axis of the sleeve shaft (18) when it rotates. When the movable cover (12) is closed, its periphery extends beyond the entire periphery of the top groove (8) to form a sealed engagement with the top side of the cleaning chamber (4).
6. The cleaning roller cleaning device and its working method according to claim 5, characterized in that, The mounting base (14) is equipped with a first motor (20), and the output end of the first motor (20) is connected to the polygonal rotating shaft (15).
7. The cleaning roller cleaning device and its working method according to claim 6, characterized in that, A second motor (21) is installed on the fixed base (17). A turntable (22) is installed at the output end of the second motor (21), and a number of transmission protrusions (23) are equidistantly arranged on the bottom side of the turntable (22) along the circumferential direction.
8. The cleaning roller cleaning device and its working method according to claim 7, characterized in that, The top side of the movable cover plate (12) is equipped with two parallel and opposite tooth surfaces, namely a first rack (24) and a second rack (25), and the first rack (24) and the second rack (25) respectively mesh with the transmission protrusion (23) of the turntable (22) for transmission.
9. The cleaning roller cleaning device and its working method according to claim 8, characterized in that, The transmission protrusion (23) is configured to periodically and alternately mesh with the first rack (24) and the second rack (25) during the continuous rotation of the turntable (22), thereby driving the movable cover plate (12) to perform reciprocating linear motion.
10. The working method of the cleaning roller cleaning device according to claim 9, characterized in that, The specific operational steps of this working method are as follows: Step 1: The first pneumatic cylinder (2) drives the lifting frame (3) to descend, bringing the entire cleaning module carrying the cleaning chamber (4) close to the wool roller. The second pneumatic cylinder (5) starts working, pushing the cleaning chamber (4) to pitch and swing around its rotation connection point with the lifting frame (3), so that the cleaning port (6) on the side wall of the cleaning chamber (4) precisely fits and wraps the lower outer surface of the wool roller. Step 2: After the cleaning chamber (4) is in place, the movable cover (12) begins to move. The second motor (21) drives the turntable (22) to rotate, and the transmission protrusion (23) on the bottom side of the turntable (22) rotates accordingly. Since the first rack (24) and the second rack (25) are parallel and their tooth surfaces are fixed to the top of the movable cover (12), the transmission protrusion (23) periodically and alternately meshes with the two racks during continuous rotation. When the transmission protrusion (23) meshes with the first rack (24), it pushes the movable cover (12) to one side. When the transmission protrusion (23) rotates... When it rotates to separate from the first rack (24) and then engages with the second rack (25), it pushes the movable cover plate (12) to move to the other side. Under the constraint of the guide rod (9), the movable cover plate (12) realizes the left and right reciprocating linear motion. The movable cover plate (12) is connected to the polygonal rotating shaft (15) through the second rotating arm (19) and the sleeve shaft (18). Its reciprocating motion is synchronously converted into the reciprocating movement of the sleeve shaft (18) on the polygonal rotating shaft (15). At the same time, the arc-shaped scraper (11) connected to the movable cover plate (12) drives the slide plate (10) to move on the guide rod (9). Step 3: The first motor (20) drives the polygonal rotating shaft (15) to rotate, and drives the arc-shaped scraper (11) to rotate through the sleeve shaft (18). The end of the arc-shaped scraper (11) is inserted into the cleaning roller, and the arc-shaped scraper (11) moves back and forth with the movable cover plate (12). The arc-shaped scraper (11) peels off the dust and lint impurities attached deep to the fibers of the cleaning roller. The negative pressure device is connected to the negative pressure port (7) through the pipe, and generates a strong suction in the negative pressure chamber of the cleaning chamber (4). Under the action of negative pressure, the peeled impurities are instantly sucked into the cleaning chamber (4) from the cleaning port (6), and gather along the downward slope at the bottom. Finally, they are drawn into the dust collection system through the negative pressure port (7). Step 4: After cleaning is completed, the first motor (20) drives the polygonal shaft (15) to rotate again. At this time, the arc-shaped scraper (11) rotates to the end and passes through the annular scraper seat (13). The annular scraper seat (13) scrapes off the impurities wrapped around and attached to the arc-shaped scraper (11) and they fall into the bottom of the cleaning chamber (4). Then the arc-shaped scraper (11) rotates back to its original position, and the second pneumatic cylinder (5) retracts, so that the cleaning chamber (4) is moved away from the surface of the cleaning roller. Then the first pneumatic cylinder (2) lifts the lifting frame (3) so that the cleaning chamber (4) is completely away from the cleaning roller.